The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 04, 2006
Filed:
Dec. 14, 2001
Martin S. Dell, Bethlehem, PA (US);
Zbigniew M. Dziong, Atlantic Highlands, NJ (US);
Wei LI, Basking Ridge, NJ (US);
Matthew Tota, Clinton, NJ (US);
Yung-terng Wang, Marlboro, NJ (US);
Martin S. Dell, Bethlehem, PA (US);
Zbigniew M. Dziong, Atlantic Highlands, NJ (US);
Wei Li, Basking Ridge, NJ (US);
Matthew Tota, Clinton, NJ (US);
Yung-Terng Wang, Marlboro, NJ (US);
Agere Systems Inc., Allentown, PA (US);
Abstract
A switch fabric for routing data has a switching stage configured between an input stage and an output stage. The input stage forwards the received data to the switching stage, which routes the data to the output stage, which transmits the data towards destinations. Each input device of the input stage transmits bids to the crossbar devices of the switching stage to request connections through the switching stage for routing the data to the output devices of the output stage. In one aspect, each crossbar device has (1) a bid arbitrator that determines whether to accept or reject each received bid, wherein, in response to a collision between multiple bids, the bid arbitrator accepts two or more of the colliding bids in a single time slot; and (2) memory for storing one or more accepted cells for the same output device, wherein the crossbar device can transmit grant signals for two or more accepted bids for the same output device in a single time slot. In another aspect, the bid arbitrator is configured to re-consider whether to accept a stored bid that was not accepted in a previous time slot.